The plant hormone that promotes dormancy in
some plants and seeds is
a. abscisic acid.
b. auxin.
c. gibberellin.
d. ethylene.
e. none of these.
A
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Homologous pairs of chromosomes align opposite of each other at the equator of a cell during _____
A) mitosis metaphase B) meiosis metaphase I C) meiosis telophase II D) meiosis metaphase II
Suspension filter feeding animals capture food particles that are:
A. floating in the water around them. B. laying on the surface of the sea floor. C. attached to rocks or other hard surfaces. D. buried within the sediments. E. All of the answer options are correct.
Cartilage injuries do not repair themselves because ________. a. All of these choices are reasons cartilage injuries do not repair themselves
b. cartilage does not receive nutrients very easily c. cartilage does not contain blood vessels d. None of these are reasons as cartilage does heal itself. e. cartilage does not divide in adults
Phenylketonuria is an example of a genetic disease in which
a. a single enzyme is not functional. b. inheritance is sex-linked. c. two parents without the disease cannot have a child with the disease. d. mental retardation always occurs, regardless of treatment. e. a transport protein does not work properly.